I know plenty of guys who wait to renew it.
they say if an airline is really interested by them, the company will renew their TR, which in fact take 2-3 sim sessions.
you will anyway go back to the sim before line training. Eaverybody will go line training too.
if an airline want all license current and vlid, it means they don't care about you. They just want cheap pilots or guys who pay to fly, and if this is the case, your job will be hell, because you are going to fly for a very cheap company.